您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Contrasting Effects of Temperature and Precipitation on Vegetation Greenness along Elevation Gradients of the Tibetan Plateau

文献类型： 外文期刊

作者： Wang, Yan 1 ; Peng, Dailiang 1 ; Shen, Miaogen 3 ; Xu, Xiyan 4 ; Yang, Xiaohua 5 ; Huang, Wenjiang 1 ; Yu, Le 6 ; Liu, Li 1 ;

作者机构： 1.Chinese Acad Sci, Aerosp Informat Res Inst, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China

2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

3.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China

4.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China

5.Meteorol & Marine Brigade, Beijing 100081, Peoples R China

6.Tsinghua Univ, Dept Earth Syst Sci, Beijing 100084, Peoples R China

7.Beijing Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

8.Chinese Acad Sci, State Key Lab Remote Sensing Sci, Jointly Sponsored Beijing Normal Univ & Inst Remo, Beijing 100875, Peoples R China

9.Beijing Normal Univ, Fac Geog Sci, Beijing Engn Res Ctr Global Land Remote Sensing P, Inst Remote Sensing Sci & Engn, Beijing 100875, Peoples R China

关键词： vegetation greenness; precipitation; temperature; elevational variation; sensitivity; isoline

期刊名称：REMOTE SENSING （ 影响因子：4.848； 五年影响因子：5.353 ）

ISSN：

年卷期： 2020 年 12 卷 17 期

页码：

收录情况： SCI

摘要： The Tibetan Plateau (TP) is one of the most sensitive regions to global climate warming, not only at the inter-annual time scale but also at the altitudinal scale. We aim to investigate the contrasting effects of temperature and precipitation on vegetation greenness at different altitudes across the TP. In this study, interannual and elevational characteristics of the Normalized Difference Vegetation Index (NDVI), temperature, and precipitation were examined during the growing season from 1982 to 2015. We compared the elevational movement rates of the isolines of NDVI, temperature, and precipitation, and the sensitivities of elevational NDVI changes to temperature and precipitation. The results show that from 1982 to 2015, the elevational variation rate of isolines for NDVI mismatched with that for temperature and precipitation. The elevational movements of NDVI isolines were mostly controlled by precipitation at elevations below 2400 m and by the temperature at elevations above 2400 m. Precipitation appears to plays a role similar to temperature, and even a more effective role than the temperature at low elevations, in controlling elevational vegetation greenness changes at both spatial and interannual scales in the TP. This study highlights the regulation of temperature and precipitation on vegetation ecosystems along elevation gradients over the whole TP under global warming conditions.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台